March 1995 Revised June 1999
7 4LCX02 Low V o lt age Quad 2-I nput NOR Gat e wi th 5V T o le rant I nput s
74LCX02
Low Voltage Quad 2-Input NOR Gate with 5V Tolerant Inputs
General Description
The LCX02 contains four 2-input NOR gates. The inputs tolerate voltages up to 7V allowing the interface of 5V sys- tems to 3V systems.
The 74LCX02 is fabricated with advanced CMOS technol- ogy to achieve high speed operation while maintaining CMOS low power dissipation.
Features
■5V tolerant inputs
■2.3V–3.6V VCC specification provided
■5.2 ns tPD max (VCC = 3.3V), 10 µA ICC max
■Power down high impedance inputs and outputs
■±24 mA output drive (VCC = 3.0V)
■Implements patented noise/EMI reduction circuitry
■Latch-up performance exceeds 500 mA
■ESD performance:
Human body model > 2000V Machine model > 200V
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
IEEE/IEC
Connection Diagram
Pin Descriptions
Order Number Package Number Package Description
74LCX02M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150” Narrow 74LCX02SJ M14D 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LCX02MTC MTC14 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Pin Names Description
An, Bn Inputs
On Outputs
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74L C X Absolute Maximum Ratings
(Note 1)Recommended Operating Conditions
(Note 4)Note 1: The Absolute Maximum Ratings are those beyond which the safety of the device cannot be guaranteed. The device should not be operating at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the Absolute Maximum Ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation.
Note 2: IO Absolute Maximum Rating must be observed.
Note 3: Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Symbol Parameter Value Conditions Units
VCC Supply Voltage −0.5 to +7.0 V
VI DC Input Voltage −0.5 to +7.0 V
VO DC Output Voltage −0.5 to VCC + 0.5 Output in HIGH or LOW State (Note 2) V
IIK DC Input Diode Current −50 VI < GND mA
IOK DC Output Diode Current −50 VO < GND
+50 VO > VCC mA
IO DC Output Source/Sink Current ±50 mA
ICC DC Supply Current per Supply Pin ±100 mA
IGND DC Ground Current per Ground Pin ±100 mA
TSTG Storage Temperature −65 to +150 °C
Symbol Parameter Min Max Units
VCC Supply Voltage Operating 2.0 3.6
Data Retention 1.5 3.6 V
VI Input Voltage 0 5.5 V
VO Output Voltage HIGH or LOW State 0 VCC V
IOH/IOL Output Current VCC = 3.0V − 3.6V ±24
mA VCC = 2.7V − 3.0V ±12
VCC = 2.3V − 2.7V ±8
TA Free-Air Operating Temperature −40 85 °C
∆t/∆V Input Edge Rate, VIN = 0.8V–2.0V, VCC = 3.0V 0 10 ns/V
Symbol Parameter Conditions VCC TA = −40°C to +85°C
Units
(V) Min Max
VIH HIGH Level Input Voltage 2.3 − 2.7 1.7
2.7 − 3.6 2.0 V
VIL LOW Level Input Voltage 2.3 − 2.7 0.7
2.7 − 3.6 0.8 V
VOH HIGH Level Output Voltage IOH = −100µA 2.3 − 3.6 VCC - 0.2
V
IOH = -8 mA 2.3 1.8
IOH=−12 mA 2.7 2.2
IOH = −18 mA 3.0 2.4
IOH=−24 mA 3.0 2.2
VOL LOW Level Output Voltage IOL= 100µA 2.3 − 3.6 0.2
IOL = 8mA 2.3 0.6
IOL= 12 mA 2.7 0.4 V
IOL= 16 mA 3.0 0.4
IOL = 24 mA 3.0 0.55
II Input Leakage Current 0 ≤ VI≤ 5.5V 2.3 − 3.6 ±5.0 µA
IOFF Power-Off Leakage Current VI or VO= 5.5V 0 10 µA
ICC Quiescent Supply Current VI = VCC or GND 2.3 − 3.6 10
3.6V ≤ VI≤ 5.5V 2.3 − 3.6 ±10 µA
∆ICC Increase in ICC per Input VIH= VCC−0.6V 2.3 − 3.6 500 µA
7 4LCX02 AC Electrical Characteristics
Note 4: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH).
Dynamic Switching Characteristics
Capacitance
Symbol Parameter
TA = −40°C to +85°C, RL = 500 Ω
Units VCC = 3.3V ± 0.3V, VCC = 2.7V VCC = 2.5V ± 0.2V
CL= 50 pF CL = 50 pF CL = 30 pF
Min Max Min Max Min Max
tPHL Propagation Delay Time 1.5 5.2 1.5 6.0 1.5 6.2
tPLH 1.5 5.2 1.5 6.0 1.5 6.2 ns
tOSHL Output to Output Skew 1.0
ns
tOSLH (Note 4) 1.0
Symbol Parameter Conditions VCC
(V)
TA = 25°C Units Typical VOLP Quiet Output Dynamic Peak VOL CL= 50 pF, VIH= 3.3V, VIL= 0V 3.3 0.8
CL= 30 pF, VIH= 2.5V, VIL= 0V 2.5 0.6 V VOLV Quiet Output Dynamic Valley VOL CL= 50 pF, VIH= 3.3V, VIL= 0V 3.3 −0.8
CL= 30 pF, VIH= 2.5V, VIL= 0V 2.5 −0.6 V
Symbol Parameter Conditions Typical Units
CIN Input Capacitance VCC= Open, VI= 0V or VCC 7 pF
COUT Output Capacitance VCC = 3.3V, VI = 0V or VCC 8 pF
CPD Power Dissipation Capacitance VCC= 3.3V, VI= 0V or VCC, f = 10 MHz 25 pF
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74L C X AC Loading and Waveforms
Generic for LCX FamilyFIGURE 1. AC Test Circuit (CL includes probe and jig capacitance)
Waveform for Inverting and Non-Inverting Functions
Propagation Delay, Pulse Width and trec Waveforms
3-STATE Output High Enable and Disable TImes for Logic
3-STATE Output Low Enable and Disable Times for Logic
Setup Time, Hold TIme and Recovery TIme for Logic
trise and tfall FIGURE 2. Waveforms
(Input Pulse Characteristics; f=1MHz, tr=tf=3ns)
Test Switch
tPLH, tPHL Open
tPZL, tPLZ 6V at VCC = 3.3 ± 0.3V VCC x 2 at VCC = 2.5 ± 0.2V tPZH,tPHZ GND
Symbol VCC
3.3V ± 0.3V 2.7V 2.5V ± 0.2V
Vmi 1.5V 1.5V VCC/2
Vmo 1.5V 1.5V VCC/2
Vx VOL + 0.3V VOL + 0.3V VOL + 0.15V Vy VOH − 0.3V VOH − 0.3V VOH − 0.15V
7 4LCX02
Schematic Diagram
Generic for LCX Familywww.fairchildsemi.com 6
74L C X Physical Dimensions
inches (millimeters) unless otherwise noted14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150” Narrow Package Number M14A
14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M14D
7 4LCX02 Low V o lt age Quad 2-I nput NOR Gat e wi th 5V T o le rant I nput s
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be rea- sonably expected to result in a significant injury to the
2. A critical component in any component of a life support device or system whose failure to perform can be rea- sonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
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Physical Dimensions
inches (millimeters) unless otherwise noted (Continued)14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC14